Context
When a sensor is mounted on a trawl door, the pitch and roll measurements may need to be calibrated. If you do not calibrate your sensors you will not know if the pitch and roll readings are correct. If existing sensors have been replaced, or new sensors have been installed, a new calibration is required if the trawl door
installation offset values are not available. When you want to use the same sensor in different doors, you do not have to perform the calibration as long as the door installation
offset values are properly entered.